Properties of the Number -2018

Eighteen

Basics

Value: -2019 → -2018 → -2017

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 1009

Divisors: 1, 2, 1009, 2018

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111100010

Octal: -3742

Duodecimal: -1202

Hexadecimal: -7e2

Square: 4072324

Square Root: 44.9221548904324

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of partitions of n into prime parts. A607

Number of compositions (ordered partitions) of n that are concave-down sequences. A70211

Coordination sequence for "tea" 3D uniform tiling. A299285

Expansion of 1/(1 - x - x² + x⁵ - x⁷). A204631

a(n) = 2·n² + 3·n + 3. A33816

Small-number statistic from the enumeration of domino tilings of a 9-pillow of order n. A112844

Numbers k such that the centered cube number k³ + (k+1)³ is equal to at least one other sum of two cubes. A352134

Triangle read by rows: T(n,k) is the number of n-bead necklaces with exactly k different colored beads. A87854

Heinz numbers of integer partitions of n into distinct perfect squares (A033461). A324587

Number of integer partitions of n with fewer parts than distinct divisors of parts. A371173